package com.foreknow.elmboot.mapper;

import com.foreknow.elmboot.po.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

/**
 * @author 最酷的桃儿wjc
 * * @date 2022/5/7
 */
@Mapper
public interface UserMapper {
    /**
     * 根据用户编号与密码查询用户信息
     * @param userId
     * @param password
     * @return
     */
    @Select("select * from user where userId=#{userId} and password=#{password}")
    public User getUserByIdByPass(String userId,String password);

    /**
     * 根据用户编号查询用户表返回的行数
     * @param userId
     * @return
     */
    @Select("select count(*) from user where userId=#{userId}")
    public Integer getUserById(String userId);

    /**
     * 向用户表中添加一条记录
     * @param user
     * @return
     */
    @Insert("insert into user(userId,password,userName,userSex) values(#{userId},#{password},#{userName},#{userSex})")
    public Integer saveUser(User user);
}
